battery

Quite strangely, there is no easy way to check the battery level of your Fitbit tracker. You can configure your profile to send you notifications when the battery is low, but that's about all.
As I was researching Bluetooth Low Energy (BLE), I noticed however that Fitbit trackers do offer the standard Battery Service (0x180f) along with the (standard) Battery Level characteristic (0x2a19).
[Read More]